SW 9628

A very high yielding non-dormant variety of alfalfa with resistance to Fusarium Wilt, Phytophthora Root Rot, Spotted Alfalfa Aphid, Pea Aphid, Blue Alfalfa Aphid and Root Knot Nematode.

SW 9628 alfalfa is a very non-dormant variety, with a dormancy rating of 9. Growth is erect with rapid recovery after cutting. It is adapted to areas of warm and very hot temperatures from the Central San Joaquin Valley to the lower desert areas of California and Arizona.

Disease, Insect and Nematode Resistance
SW 9628 is resistant to Root Knot Nematode and Spotted Alfalfa Aphid, resistant to Fusarium Wilt, Phytophthora Root rot, Pea Aphid and Blue Aphid. It also has low resistance to Bacterial Wilt and Anthracnose.

For hay production, SW 9628 is adapted to areas of California and Arizona where non-dormant varieties are recommended. SW 9628 was the Highest Yielding variety in the 3-year forage trial of 51 entries at the University of California Kearney Research Center, Parlier, California. It yields very well in the University of Arizona trials at Maricopa also.

SW 9628 was developed in the Parker Valley, Arizona and in the Central San Joaquin Valley of California. Breeder’s seed was produced on very salty soil in the Mendota, California area. SW 9628 was synthesized from 135 plants and is a California Certified Variety.

Variety Dormancy Bacteria Wilt Verticillium Wilt Fusarium Wilt Antherac Phytophthora Root Rot Spotted Aphid Pea Aphid Blue Aphid Stem Nematode Southern Root Knot Nematode Northern Root Knot Nematode

HR: Highly Resistant
R: Resistant
MR: Moderately Resistant
LR: Low Resistance
S: Susceptible
– : Insufficient Data

1-9, with 1 being most dormant and 9 being least dormant

SW 9628 9 R R HR R R HR



SW9628 Graph
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Dormancy 9 Alfalfa, a three time first place winner for highest yield, in multiple University trials.

Key Advantages

  • Excellent yielding, persistent, Group 9 dormancy variety. SW9628 took first place in University of Arizona Yield Trials 2009; in Imperial Valley, 3 year trial; and in 3 year trial of 51 entries at UC Kearney in Parlier.
  • In UC trials, this variety has out-produced CUF 101 in the Imperial Valley and San Joaquin Valley by an average of 15.2% over a three-year period.
  • Very quick recovery after cutting. Competes well with Bermuda grass by shading the grass out.
  • Suited to hot climates and to soils with nema¬tode problems.
  • Yields very well in the low desert, hot areas of the Southern San Joaquin Valley and Arizona.

Major Pest Resistance

  • Fusarium WiltResistant
  • Phytophthora Root RotResistant
  • Spotted Alfalfa AphidHighly Resistant
  • Pea AphidResistant
  • Blue Alfalfa AphidResistant
  • Southern Root Knot NematodeHighly Resistant